diff --git a/Lib/test/test_http_cookies.py b/Lib/test/test_http_cookies.py
index d3e06a4..f74ab98 100644
--- a/Lib/test/test_http_cookies.py
+++ b/Lib/test/test_http_cookies.py
@@ -92,6 +92,15 @@ class CookieTests(unittest.TestCase):
         </script>
         """)
 
+    def test_load_accepts_a_binary_string(self):
+        C = cookies.SimpleCookie()
+        C.load(b'foo=bar')
+        self.assertEqual(C.output(), 'foo=bar')
+
+    def test_load_rejects_a_text_string(self):
+        C = cookies.SimpleCookie()
+        self.assertRaises(TypeError, C.load, 'foo=bar')
+
     def test_extended_encode(self):
         # Issue 9824: some browsers don't follow the standard; we now
         # encode , and ; to keep them from tripping up.